Charging error 115 means there was a cell failure on the battery during charging and the battery may need to be replaced.
Confirm that you are using an authentic iRobot® Lithium-Ion Battery. Unknown charging errors can occur with aftermarket purchased batteries. Visit here for instructions on How to remove the battery: All Roomba® and Braava® Models.
If the message persists, you will need to purchase a new battery.
Please visit iRobot Store - Parts and Accessories to purchase, or contact iRobot Customer Care for additional assistance.
For expedited service, please have the following ready:
